数字喷泉码的编码matlab代码及编译码说明，编码代码附录在文后-code encoding and the encryption code Matlab note, coding code in the text after the Appendix

用于测试LT码在不同包数目不同码长以及不同冗余情况下的译码错误率的情况比较。(The comparison is used to test the decoding error rate of the LT code under different code lengths and different redundancy.)